arch/arm/mach-omap2/devices.c

   1 /*
   2  * linux/arch/arm/mach-omap2/devices.c
   3  *
   4  * OMAP2 platform device setup/initialization
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11 #include <linux/gpio.h>
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/io.h>
  16 #include <linux/clk.h>
  17 #include <linux/err.h>
  18 #include <linux/slab.h>
  19 #include <linux/of.h>
  20 #include <linux/platform_data/omap4-keypad.h>
  21
  22 #include <mach/hardware.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/map.h>
  25 #include <asm/pmu.h>
  26
  27 #include "iomap.h"
  28 #include <plat/dma.h>
  29 #include <plat/omap_hwmod.h>
  30 #include <plat/omap_device.h>
  31 #include <plat/omap4-keypad.h>
  32
  33 #include "soc.h"
  34 #include "common.h"
  35 #include "mux.h"
  36 #include "control.h"
  37 #include "devices.h"
  38
  39 #define L3_MODULES_MAX_LEN 12
  40 #define L3_MODULES 3
  41
  42 static int __init omap3_l3_init(void)
  43 {
  44         struct omap_hwmod *oh;
  45         struct platform_device *pdev;
  46         char oh_name[L3_MODULES_MAX_LEN];
  47
  48         /*
  49          * To avoid code running on other OMAPs in
  50          * multi-omap builds
  51          */
  52         if (!(cpu_is_omap34xx()))
  53                 return -ENODEV;
  54
  55         snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
  56
  57         oh = omap_hwmod_lookup(oh_name);
  58
  59         if (!oh)
  60                 pr_err("could not look up %s\n", oh_name);
  61
  62         pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0,
  63                                                            NULL, 0, 0);
  64
  65         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
  66
  67         return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
  68 }
  69 postcore_initcall(omap3_l3_init);
  70
  71 static int __init omap4_l3_init(void)
  72 {
  73         int i;
  74         struct omap_hwmod *oh[3];
  75         struct platform_device *pdev;
  76         char oh_name[L3_MODULES_MAX_LEN];
  77
  78         /* If dtb is there, the devices will be created dynamically */
  79         if (of_have_populated_dt())
  80                 return -ENODEV;
  81
  82         /*
  83          * To avoid code running on other OMAPs in
  84          * multi-omap builds
  85          */
  86         if (!cpu_is_omap44xx() && !soc_is_omap54xx())
  87                 return -ENODEV;
  88
  89         for (i = 0; i < L3_MODULES; i++) {
  90                 snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main_%d", i+1);
  91
  92                 oh[i] = omap_hwmod_lookup(oh_name);
  93                 if (!(oh[i]))
  94                         pr_err("could not look up %s\n", oh_name);
  95         }
  96
  97         pdev = omap_device_build_ss("omap_l3_noc", 0, oh, 3, NULL,
  98                                                      0, NULL, 0, 0);
  99
 100         WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
 101
 102         return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
 103 }
 104 postcore_initcall(omap4_l3_init);
 105
 106 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 107
 108 static struct resource omap2cam_resources[] = {
 109         {
 110                 .start          = OMAP24XX_CAMERA_BASE,
 111                 .end            = OMAP24XX_CAMERA_BASE + 0xfff,
 112                 .flags          = IORESOURCE_MEM,
 113         },
 114         {
 115                 .start          = 24 + OMAP_INTC_START,
 116                 .flags          = IORESOURCE_IRQ,
 117         }
 118 };
 119
 120 static struct platform_device omap2cam_device = {
 121         .name           = "omap24xxcam",
 122         .id             = -1,
 123         .num_resources  = ARRAY_SIZE(omap2cam_resources),
 124         .resource       = omap2cam_resources,
 125 };
 126 #endif
 127
 128 #if defined(CONFIG_IOMMU_API)
 129
 130 #include <plat/iommu.h>
 131
 132 static struct resource omap3isp_resources[] = {
 133         {
 134                 .start          = OMAP3430_ISP_BASE,
 135                 .end            = OMAP3430_ISP_END,
 136                 .flags          = IORESOURCE_MEM,
 137         },
 138         {
 139                 .start          = OMAP3430_ISP_CCP2_BASE,
 140                 .end            = OMAP3430_ISP_CCP2_END,
 141                 .flags          = IORESOURCE_MEM,
 142         },
 143         {
 144                 .start          = OMAP3430_ISP_CCDC_BASE,
 145                 .end            = OMAP3430_ISP_CCDC_END,
 146                 .flags          = IORESOURCE_MEM,
 147         },
 148         {
 149                 .start          = OMAP3430_ISP_HIST_BASE,
 150                 .end            = OMAP3430_ISP_HIST_END,
 151                 .flags          = IORESOURCE_MEM,
 152         },
 153         {
 154                 .start          = OMAP3430_ISP_H3A_BASE,
 155                 .end            = OMAP3430_ISP_H3A_END,
 156                 .flags          = IORESOURCE_MEM,
 157         },
 158         {
 159                 .start          = OMAP3430_ISP_PREV_BASE,
 160                 .end            = OMAP3430_ISP_PREV_END,
 161                 .flags          = IORESOURCE_MEM,
 162         },
 163         {
 164                 .start          = OMAP3430_ISP_RESZ_BASE,
 165                 .end            = OMAP3430_ISP_RESZ_END,
 166                 .flags          = IORESOURCE_MEM,
 167         },
 168         {
 169                 .start          = OMAP3430_ISP_SBL_BASE,
 170                 .end            = OMAP3430_ISP_SBL_END,
 171                 .flags          = IORESOURCE_MEM,
 172         },
 173         {
 174                 .start          = OMAP3430_ISP_CSI2A_REGS1_BASE,
 175                 .end            = OMAP3430_ISP_CSI2A_REGS1_END,
 176                 .flags          = IORESOURCE_MEM,
 177         },
 178         {
 179                 .start          = OMAP3430_ISP_CSIPHY2_BASE,
 180                 .end            = OMAP3430_ISP_CSIPHY2_END,
 181                 .flags          = IORESOURCE_MEM,
 182         },
 183         {
 184                 .start          = OMAP3630_ISP_CSI2A_REGS2_BASE,
 185                 .end            = OMAP3630_ISP_CSI2A_REGS2_END,
 186                 .flags          = IORESOURCE_MEM,
 187         },
 188         {
 189                 .start          = OMAP3630_ISP_CSI2C_REGS1_BASE,
 190                 .end            = OMAP3630_ISP_CSI2C_REGS1_END,
 191                 .flags          = IORESOURCE_MEM,
 192         },
 193         {
 194                 .start          = OMAP3630_ISP_CSIPHY1_BASE,
 195                 .end            = OMAP3630_ISP_CSIPHY1_END,
 196                 .flags          = IORESOURCE_MEM,
 197         },
 198         {
 199                 .start          = OMAP3630_ISP_CSI2C_REGS2_BASE,
 200                 .end            = OMAP3630_ISP_CSI2C_REGS2_END,
 201                 .flags          = IORESOURCE_MEM,
 202         },
 203         {
 204                 .start          = 24 + OMAP_INTC_START,
 205                 .flags          = IORESOURCE_IRQ,
 206         }
 207 };
 208
 209 static struct platform_device omap3isp_device = {
 210         .name           = "omap3isp",
 211         .id             = -1,
 212         .num_resources  = ARRAY_SIZE(omap3isp_resources),
 213         .resource       = omap3isp_resources,
 214 };
 215
 216 static struct omap_iommu_arch_data omap3_isp_iommu = {
 217         .name = "isp",
 218 };
 219
 220 int omap3_init_camera(struct isp_platform_data *pdata)
 221 {
 222         omap3isp_device.dev.platform_data = pdata;
 223         omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
 224
 225         return platform_device_register(&omap3isp_device);
 226 }
 227
 228 #else /* !CONFIG_IOMMU_API */
 229
 230 int omap3_init_camera(struct isp_platform_data *pdata)
 231 {
 232         return 0;
 233 }
 234
 235 #endif
 236
 237 static inline void omap_init_camera(void)
 238 {
 239 #if defined(CONFIG_VIDEO_OMAP2) || defined(CONFIG_VIDEO_OMAP2_MODULE)
 240         if (cpu_is_omap24xx())
 241                 platform_device_register(&omap2cam_device);
 242 #endif
 243 }
 244
 245 int __init omap4_keyboard_init(struct omap4_keypad_platform_data
 246                         *sdp4430_keypad_data, struct omap_board_data *bdata)
 247 {
 248         struct platform_device *pdev;
 249         struct omap_hwmod *oh;
 250         struct omap4_keypad_platform_data *keypad_data;
 251         unsigned int id = -1;
 252         char *oh_name = "kbd";
 253         char *name = "omap4-keypad";
 254
 255         oh = omap_hwmod_lookup(oh_name);
 256         if (!oh) {
 257                 pr_err("Could not look up %s\n", oh_name);
 258                 return -ENODEV;
 259         }
 260
 261         keypad_data = sdp4430_keypad_data;
 262
 263         pdev = omap_device_build(name, id, oh, keypad_data,
 264                         sizeof(struct omap4_keypad_platform_data), NULL, 0, 0);
 265
 266         if (IS_ERR(pdev)) {
 267                 WARN(1, "Can't build omap_device for %s:%s.\n",
 268                                                 name, oh->name);
 269                 return PTR_ERR(pdev);
 270         }
 271         oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
 272
 273         return 0;
 274 }
 275
 276 #if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE)
 277 static inline void __init omap_init_mbox(void)
 278 {
 279         struct omap_hwmod *oh;
 280         struct platform_device *pdev;
 281
 282         oh = omap_hwmod_lookup("mailbox");
 283         if (!oh) {
 284                 pr_err("%s: unable to find hwmod\n", __func__);
 285                 return;
 286         }
 287
 288         pdev = omap_device_build("omap-mailbox", -1, oh, NULL, 0, NULL, 0, 0);
 289         WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
 290                                                 __func__, PTR_ERR(pdev));
 291 }
 292 #else
 293 static inline void omap_init_mbox(void) { }
 294 #endif /* CONFIG_OMAP_MBOX_FWK */
 295
 296 static inline void omap_init_sti(void) {}
 297
 298 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
 299
 300 static struct platform_device omap_pcm = {
 301         .name   = "omap-pcm-audio",
 302         .id     = -1,
 303 };
 304
 305 static void omap_init_audio(void)
 306 {
 307         platform_device_register(&omap_pcm);
 308 }
 309
 310 #else
 311 static inline void omap_init_audio(void) {}
 312 #endif
 313
 314 #if defined(CONFIG_SND_OMAP_SOC_MCPDM) || \
 315                 defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)
 316
 317 static void __init omap_init_mcpdm(void)
 318 {
 319         struct omap_hwmod *oh;
 320         struct platform_device *pdev;
 321
 322         oh = omap_hwmod_lookup("mcpdm");
 323         if (!oh) {
 324                 printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
 325                 return;
 326         }
 327
 328         pdev = omap_device_build("omap-mcpdm", -1, oh, NULL, 0, NULL, 0, 0);
 329         WARN(IS_ERR(pdev), "Can't build omap_device for omap-mcpdm.\n");
 330 }
 331 #else
 332 static inline void omap_init_mcpdm(void) {}
 333 #endif
 334
 335 #if defined(CONFIG_SND_OMAP_SOC_DMIC) || \
 336                 defined(CONFIG_SND_OMAP_SOC_DMIC_MODULE)
 337
 338 static void __init omap_init_dmic(void)
 339 {
 340         struct omap_hwmod *oh;
 341         struct platform_device *pdev;
 342
 343         oh = omap_hwmod_lookup("dmic");
 344         if (!oh) {
 345                 printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
 346                 return;
 347         }
 348
 349         pdev = omap_device_build("omap-dmic", -1, oh, NULL, 0, NULL, 0, 0);
 350         WARN(IS_ERR(pdev), "Can't build omap_device for omap-dmic.\n");
 351 }
 352 #else
 353 static inline void omap_init_dmic(void) {}
 354 #endif
 355
 356 #if defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI) || \
 357                 defined(CONFIG_SND_OMAP_SOC_OMAP_HDMI_MODULE)
 358
 359 static struct platform_device omap_hdmi_audio = {
 360         .name   = "omap-hdmi-audio",
 361         .id     = -1,
 362 };
 363
 364 static void __init omap_init_hdmi_audio(void)
 365 {
 366         struct omap_hwmod *oh;
 367         struct platform_device *pdev;
 368
 369         oh = omap_hwmod_lookup("dss_hdmi");
 370         if (!oh) {
 371                 printk(KERN_ERR "Could not look up dss_hdmi hw_mod\n");
 372                 return;
 373         }
 374
 375         pdev = omap_device_build("omap-hdmi-audio-dai",
 376                 -1, oh, NULL, 0, NULL, 0, 0);
 377         WARN(IS_ERR(pdev),
 378              "Can't build omap_device for omap-hdmi-audio-dai.\n");
 379
 380         platform_device_register(&omap_hdmi_audio);
 381 }
 382 #else
 383 static inline void omap_init_hdmi_audio(void) {}
 384 #endif
 385
 386 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 387
 388 #include <plat/mcspi.h>
 389
 390 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
 391 {
 392         struct platform_device *pdev;
 393         char *name = "omap2_mcspi";
 394         struct omap2_mcspi_platform_config *pdata;
 395         static int spi_num;
 396         struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
 397
 398         pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
 399         if (!pdata) {
 400                 pr_err("Memory allocation for McSPI device failed\n");
 401                 return -ENOMEM;
 402         }
 403
 404         pdata->num_cs = mcspi_attrib->num_chipselect;
 405         switch (oh->class->rev) {
 406         case OMAP2_MCSPI_REV:
 407         case OMAP3_MCSPI_REV:
 408                         pdata->regs_offset = 0;
 409                         break;
 410         case OMAP4_MCSPI_REV:
 411                         pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
 412                         break;
 413         default:
 414                         pr_err("Invalid McSPI Revision value\n");
 415                         kfree(pdata);
 416                         return -EINVAL;
 417         }
 418
 419         spi_num++;
 420         pdev = omap_device_build(name, spi_num, oh, pdata,
 421                                 sizeof(*pdata), NULL, 0, 0);
 422         WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
 423                                 name, oh->name);
 424         kfree(pdata);
 425         return 0;
 426 }
 427
 428 static void omap_init_mcspi(void)
 429 {
 430         omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
 431 }
 432
 433 #else
 434 static inline void omap_init_mcspi(void) {}
 435 #endif
 436
 437 static struct resource omap2_pmu_resource = {
 438         .start  = 3 + OMAP_INTC_START,
 439         .flags  = IORESOURCE_IRQ,
 440 };
 441
 442 static struct resource omap3_pmu_resource = {
 443         .start  = 3 + OMAP_INTC_START,
 444         .flags  = IORESOURCE_IRQ,
 445 };
 446
 447 static struct platform_device omap_pmu_device = {
 448         .name           = "arm-pmu",
 449         .id             = ARM_PMU_DEVICE_CPU,
 450         .num_resources  = 1,
 451 };
 452
 453 static void omap_init_pmu(void)
 454 {
 455         if (cpu_is_omap24xx())
 456                 omap_pmu_device.resource = &omap2_pmu_resource;
 457         else if (cpu_is_omap34xx())
 458                 omap_pmu_device.resource = &omap3_pmu_resource;
 459         else
 460                 return;
 461
 462         platform_device_register(&omap_pmu_device);
 463 }
 464
 465
 466 #if defined(CONFIG_CRYPTO_DEV_OMAP_SHAM) || defined(CONFIG_CRYPTO_DEV_OMAP_SHAM_MODULE)
 467
 468 #ifdef CONFIG_ARCH_OMAP2
 469 static struct resource omap2_sham_resources[] = {
 470         {
 471                 .start  = OMAP24XX_SEC_SHA1MD5_BASE,
 472                 .end    = OMAP24XX_SEC_SHA1MD5_BASE + 0x64,
 473                 .flags  = IORESOURCE_MEM,
 474         },
 475         {
 476                 .start  = 51 + OMAP_INTC_START,
 477                 .flags  = IORESOURCE_IRQ,
 478         }
 479 };
 480 static int omap2_sham_resources_sz = ARRAY_SIZE(omap2_sham_resources);
 481 #else
 482 #define omap2_sham_resources            NULL
 483 #define omap2_sham_resources_sz         0
 484 #endif
 485
 486 #ifdef CONFIG_ARCH_OMAP3
 487 static struct resource omap3_sham_resources[] = {
 488         {
 489                 .start  = OMAP34XX_SEC_SHA1MD5_BASE,
 490                 .end    = OMAP34XX_SEC_SHA1MD5_BASE + 0x64,
 491                 .flags  = IORESOURCE_MEM,
 492         },
 493         {
 494                 .start  = 49 + OMAP_INTC_START,
 495                 .flags  = IORESOURCE_IRQ,
 496         },
 497         {
 498                 .start  = OMAP34XX_DMA_SHA1MD5_RX,
 499                 .flags  = IORESOURCE_DMA,
 500         }
 501 };
 502 static int omap3_sham_resources_sz = ARRAY_SIZE(omap3_sham_resources);
 503 #else
 504 #define omap3_sham_resources            NULL
 505 #define omap3_sham_resources_sz         0
 506 #endif
 507
 508 static struct platform_device sham_device = {
 509         .name           = "omap-sham",
 510         .id             = -1,
 511 };
 512
 513 static void omap_init_sham(void)
 514 {
 515         if (cpu_is_omap24xx()) {
 516                 sham_device.resource = omap2_sham_resources;
 517                 sham_device.num_resources = omap2_sham_resources_sz;
 518         } else if (cpu_is_omap34xx()) {
 519                 sham_device.resource = omap3_sham_resources;
 520                 sham_device.num_resources = omap3_sham_resources_sz;
 521         } else {
 522                 pr_err("%s: platform not supported\n", __func__);
 523                 return;
 524         }
 525         platform_device_register(&sham_device);
 526 }
 527 #else
 528 static inline void omap_init_sham(void) { }
 529 #endif
 530
 531 #if defined(CONFIG_CRYPTO_DEV_OMAP_AES) || defined(CONFIG_CRYPTO_DEV_OMAP_AES_MODULE)
 532
 533 #ifdef CONFIG_ARCH_OMAP2
 534 static struct resource omap2_aes_resources[] = {
 535         {
 536                 .start  = OMAP24XX_SEC_AES_BASE,
 537                 .end    = OMAP24XX_SEC_AES_BASE + 0x4C,
 538                 .flags  = IORESOURCE_MEM,
 539         },
 540         {
 541                 .start  = OMAP24XX_DMA_AES_TX,
 542                 .flags  = IORESOURCE_DMA,
 543         },
 544         {
 545                 .start  = OMAP24XX_DMA_AES_RX,
 546                 .flags  = IORESOURCE_DMA,
 547         }
 548 };
 549 static int omap2_aes_resources_sz = ARRAY_SIZE(omap2_aes_resources);
 550 #else
 551 #define omap2_aes_resources             NULL
 552 #define omap2_aes_resources_sz          0
 553 #endif
 554
 555 #ifdef CONFIG_ARCH_OMAP3
 556 static struct resource omap3_aes_resources[] = {
 557         {
 558                 .start  = OMAP34XX_SEC_AES_BASE,
 559                 .end    = OMAP34XX_SEC_AES_BASE + 0x4C,
 560                 .flags  = IORESOURCE_MEM,
 561         },
 562         {
 563                 .start  = OMAP34XX_DMA_AES2_TX,
 564                 .flags  = IORESOURCE_DMA,
 565         },
 566         {
 567                 .start  = OMAP34XX_DMA_AES2_RX,
 568                 .flags  = IORESOURCE_DMA,
 569         }
 570 };
 571 static int omap3_aes_resources_sz = ARRAY_SIZE(omap3_aes_resources);
 572 #else
 573 #define omap3_aes_resources             NULL
 574 #define omap3_aes_resources_sz          0
 575 #endif
 576
 577 static struct platform_device aes_device = {
 578         .name           = "omap-aes",
 579         .id             = -1,
 580 };
 581
 582 static void omap_init_aes(void)
 583 {
 584         if (cpu_is_omap24xx()) {
 585                 aes_device.resource = omap2_aes_resources;
 586                 aes_device.num_resources = omap2_aes_resources_sz;
 587         } else if (cpu_is_omap34xx()) {
 588                 aes_device.resource = omap3_aes_resources;
 589                 aes_device.num_resources = omap3_aes_resources_sz;
 590         } else {
 591                 pr_err("%s: platform not supported\n", __func__);
 592                 return;
 593         }
 594         platform_device_register(&aes_device);
 595 }
 596
 597 #else
 598 static inline void omap_init_aes(void) { }
 599 #endif
 600
 601 /*-------------------------------------------------------------------------*/
 602
 603 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
 604         defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
 605 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
 606 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
 607 };
 608 #else
 609 static struct resource omap_vout_resource[2] = {
 610 };
 611 #endif
 612
 613 static struct platform_device omap_vout_device = {
 614         .name           = "omap_vout",
 615         .num_resources  = ARRAY_SIZE(omap_vout_resource),
 616         .resource       = &omap_vout_resource[0],
 617         .id             = -1,
 618 };
 619 static void omap_init_vout(void)
 620 {
 621         if (platform_device_register(&omap_vout_device) < 0)
 622                 printk(KERN_ERR "Unable to register OMAP-VOUT device\n");
 623 }
 624 #else
 625 static inline void omap_init_vout(void) {}
 626 #endif
 627
 628 /*-------------------------------------------------------------------------*/
 629
 630 static int __init omap2_init_devices(void)
 631 {
 632         /*
 633          * please keep these calls, and their implementations above,
 634          * in alphabetical order so they're easier to sort through.
 635          */
 636         omap_init_audio();
 637         omap_init_camera();
 638         omap_init_hdmi_audio();
 639         omap_init_mbox();
 640         /* If dtb is there, the devices will be created dynamically */
 641         if (!of_have_populated_dt()) {
 642                 omap_init_dmic();
 643                 omap_init_mcpdm();
 644                 omap_init_mcspi();
 645         }
 646         omap_init_pmu();
 647         omap_init_sti();
 648         omap_init_sham();
 649         omap_init_aes();
 650         omap_init_vout();
 651
 652         return 0;
 653 }
 654 arch_initcall(omap2_init_devices);
 655
 656 #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
 657 static int __init omap_init_wdt(void)
 658 {
 659         int id = -1;
 660         struct platform_device *pdev;
 661         struct omap_hwmod *oh;
 662         char *oh_name = "wd_timer2";
 663         char *dev_name = "omap_wdt";
 664
 665         if (!cpu_class_is_omap2() || of_have_populated_dt())
 666                 return 0;
 667
 668         oh = omap_hwmod_lookup(oh_name);
 669         if (!oh) {
 670                 pr_err("Could not look up wd_timer%d hwmod\n", id);
 671                 return -EINVAL;
 672         }
 673
 674         pdev = omap_device_build(dev_name, id, oh, NULL, 0, NULL, 0, 0);
 675         WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s.\n",
 676                                 dev_name, oh->name);
 677         return 0;
 678 }
 679 subsys_initcall(omap_init_wdt);
 680 #endif